
Flat Roofing in Kent & London
Flat roofing in Kent and London for extensions, garages, outbuildings and commercial buildings. GRP, felt and rubber systems with free, no-obligation quotes.
GRP, felt and rubber flat roofing built for long-term performance
We provide flat roofing services for extensions, garages, and commercial buildings, using modern, durable systems designed for long-term performance.
We work on flat roofs including felt, GRP (fibreglass), and rubber roofing systems for both residential and light commercial properties.

Flat roof systems we install
Which system suits a roof depends on its shape, how it is used and the building it sits on. We assess the roof and explain the options.
- GRP (fibreglass)A seamless fibreglass surface that suits extensions, garages and outbuildings.
- FeltA traditional layered covering that has been used on flat roofs for many years.
- RubberA single-sheet rubber membrane that reduces the number of joins on the roof.
Why flat roofs fail
- Water that does not drainStanding water wears the surface faster and finds weak points.
- Failed joints and edgesSplits at upstands, edges and pipes let water in.
- Age and movementSun, frost and movement in the building gradually break down older coverings.
- A poor baseA soft or damaged deck under the covering causes problems however good the new surface is.
Flat roof systems
- Flat roofing systemsModern, durable flat roof systems designed for long-term performance.
- GRP (fibreglass)A seamless fibreglass surface for extensions, garages and outbuildings.
- FeltA traditional layered covering used on flat roofs for many years.
- Rubber roofingA single-sheet rubber membrane with fewer joins.
- Extensions, garages and outbuildingsThe flat roofs on the buildings added to a property.
- Commercial buildingsFlat roofing for business premises as well as homes.

Our guarantees
A guarantee that outlasts the scaffolding
A roof should give you confidence long after we have left. That is why our replacements come with a guarantee measured in decades, not months.
The guarantee cover, length and terms are confirmed with you before any work begins, so you know exactly what you are getting.
A guarantee only means something when the company behind it is there to honour it.
Before you choose
Look beyond the quote
Two roofing quotes can look similar on paper while including very different amounts of work. Here is what to compare.
- See the workAsk to see completed jobs and work in progress, not just a finished photo.
- Know what is includedCheck the materials, the preparation and the work are all clearly explained.
- Check the companyLook at who is behind the business, their insurance and who will be on your roof.
- Get the guarantee in writingMake sure the cover and the length of the guarantee are agreed before work starts.
The cheapest quote is not always the same work for less money. Sometimes it is simply less work.
How it works with G Scott Roofing
Inspection
We arrange a convenient time to inspect your roof and assess exactly what's required.
Clear Quote
You'll receive a transparent, fixed quote with no hidden costs or pressure.
Quality Work
Our skilled team completes the work efficiently, safely and to a high standard.
Aftercare
We check in after completion to ensure you're completely happy with the result.
Why choose G Scott Roofing & Building
- Free, no-obligation quotesQuotes are free. Advice is honest. No obligation.
- Honest adviceWe explain the options clearly and give an honest price, with no pressure.
- Local and family-runBased in Swanley, covering Kent and London, and run as a family business.
- Clear communicationReliable workmanship, clear communication and attention to detail at every stage.
- Fully insuredAll work is fully insured, giving you peace of mind while it is carried out on your property.
Flat Roofing: our work
Related services
- Roof RepairsFast, reliable repairs for damaged tiles, leaks, and structural issues.
- New Roofs & Re-RoofingComplete roof installations built to protect your home for years to come.
- Extensions & Structural WorkComplete building services from planning-stage work through to completion.
- Drone Roof SurveysSafe roof inspections to assess condition and plan work before repairs or installations.
Flat Roofing FAQs
What types of roofs do you work on?
We work on pitched and flat roofs, including tile, slate, felt, GRP (fibreglass), and rubber roofing systems for both residential and light commercial properties.
Do you offer free roofing quotes?
Yes, all our quotes are free and no-obligation. We'll assess your roof properly, explain the options clearly, and provide an honest price with no pressure.
Do you carry out roof repairs as well as replacements?
Yes. We handle everything from small repairs (leaks, broken tiles, flashing issues) to full roof replacements, depending on what your roof needs.
How long does roofing work usually take?
Most repairs can be completed within a day, while larger projects like replacements vary depending on size and weather. We'll always give you a clear timeframe before starting.
Still have a question? Call 07816 583051 or message us on WhatsApp.
Where we work
Based in Swanley, we carry out flat roofing across Kent and London, including Swanley, Dartford, Bexley, Maidstone, Sevenoaks and Bromley, Sidcup, Bexleyheath.

Need flat roofing?
Free quotes. Honest advice. No obligation.
